SIGNAL TRANSMISSION METHOD AND DEVICE

This application provides a signal transmission method and apparatus, to propose a diversity transmission solution. A transmitting end groups a plurality of modulation symbols into a plurality of groups of modulation symbols, and adds one or more preset symbols to each group of modulation symbols to...

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Bibliographic Details
Main Authors XU, Minghui, LIU, Fengwei
Format Patent
LanguageEnglish
French
German
Published 19.07.2023
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:This application provides a signal transmission method and apparatus, to propose a diversity transmission solution. A transmitting end groups a plurality of modulation symbols into a plurality of groups of modulation symbols, and adds one or more preset symbols to each group of modulation symbols to obtain extended symbols. Then, the transmitting end performs second-level precoding on at least one group of extended symbols corresponding to each group of antenna ports, to obtain a symbol corresponding to each antenna port in each group of antenna ports. In second-level precoding, a dimension of a precoding matrix for each group of precoding antenna ports is related to a quantity of groups and a quantity of antenna ports included in the group of antenna ports. Finally, the transmitting end sends the symbol corresponding to each antenna port. Locations of a plurality of groups of modulation symbols corresponding to each group of antenna ports in the extended symbols do not overlap locations of at least one group of modulation symbols corresponding to any other group of antenna ports in the at least one group of extended symbols. Therefore, diversity transmission is implemented.
Bibliography:Application Number: EP20200958271